One vertex per element, one color per generator, with an edge from x to x·s.
(2,6)(3,8)(9,10)(11,12)(13,14)(15,16)(17,18,23,22)(19,26,21,24)(20,25,28,29)(27,32,30,31)(1,2)(3,7)(4,8)(5,6)(10,14)(12,15)(17,19,23,21)(18,24,22,26)(20,27,28,30)(25,31,29,32)(1,3,5,8)(2,7,6,4)(9,10,13,14)(11,15,16,12)(20,28)(25,29)(27,30)(31,32)(3,8)(4,7)(9,11)(10,15)(12,14)(13,16)(17,20,23,28)(18,25,22,29)(19,27,21,30)(24,31,26,32)(1,4)(2,3)(5,7)(6,8)(9,12,13,15)(10,11,14,16)(17,21,23,19)(18,24,22,26)(20,27,28,30)(25,32,29,31)(1,2)(3,7)(4,8)(5,6)(9,11)(10,15)(12,14)(13,16)(17,22,23,18)(19,26,21,24)(20,29,28,25)(27,32,30,31)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.